Telephone base unit



FIG. 1 is a perspective view of a telephone base unit of the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is bottom view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines shown represent environmental subject matter and form no part of the claimed design. 

CLAIM I claim the ornamental design for a telephone base unit, as shown and described. 